The ARP 300-8323 12-point nut kit provides superior clamping force and reliability for critical automotive assemblies. Featuring a 7/16in-20 thread pitch, these nuts are engineered for high-stress environments where fastener failure is not an option. The 12-point head design offers a greater surface area for socket engagement compared to standard hex nuts, allowing for more consistent torque application and easier access in confined spaces.

• Manufacturer Part Number: 300-8323
• Thread Size: 7/16in-20
• Head Style: 12-Point
• Quantity: Pack of 2
• Precision-machined for maximum strength and thread engagement

This ARP 12-point nut kit (MPN 300-8312) provides a high-strength fastening solution for various automotive assembly needs. Designed for precision and reliability, these nuts feature a compact 12-point head that allows for better socket access and higher torque applications in confined spaces where standard hex hardware may struggle.

• Thread Size: M8 x 1.25
• Drive Style: 12-Point
• Quantity: 10 nuts per package
• Manufacturer Part Number: 300-8312

Whether you are securing engine accessories or chassis components, these fasteners offer the consistent clamping force and durable construction that specialists expect from ARP hardware. Each kit contains ten precision-machined nuts ready for installation.

The ARP 300-8310 M8 x 1.25 12-Point Nut Kit provides the high-strength fastening required for critical automotive assemblies. Designed for applications where space is at a premium, the 12-point head offers a smaller profile than traditional hex nuts, allowing for superior tool clearance and more accurate torque distribution during installation.

• Manufacturer Part Number: 300-8310
• Thread Size: M8 x 1.25
• Fastener Style: 12-Point Nut
• Construction: High-performance fastener material for maximum clamping force

Engineered to meet the rigorous demands of professional engine builders, these nuts are ideal for securing intake manifolds, exhaust components, and various brackets where reliability and precision are non-negotiable.

The ARP 300-8308 M12 x 1.25 12-point nut kit provides high-strength fastening for critical automotive assemblies where space is at a premium. The 12-point head design offers superior wrenching capabilities and allows for higher torque application than standard hex nuts, while also facilitating easier socket engagement in confined areas.

Specifically engineered with a small collar, these nuts are the ideal solution for applications where flange clearance is limited. Like all ARP hardware, these fasteners are precision-machined to exacting tolerances, ensuring consistent thread engagement and reliable clamping force under high-stress conditions.

• Manufacturer Part Number: 300-8308
• Thread Pitch: M12 x 1.25
• Head Style: 12-Point
• Collar Style: Small Collar
• Engineered for high-torque, tight-clearance applications

This ARP 12-point nut kit provides high-strength fastening for critical automotive assemblies. Engineered for precision and durability, these nuts are ideal for applications requiring high torque and reliable clamping force. The 12-point wrenching surface allows for a smaller head diameter compared to standard hex nuts, providing superior clearance in tight mechanical spaces where socket access is restricted.

• Thread Size: M12 x 1.25
• Head Style: 12-Point
• Manufacturer Part Number: 300-8307
• Finish: Black Oxide

Precision-machined to ARP's rigorous standards, this kit ensures consistent performance across various drivetrain, suspension, or engine setups. The 12-point design offers increased surface area for the socket, significantly reducing the risk of rounding the fastener under high-load conditions.

Secure your critical components with the precision and strength of this ARP 12-point nut kit. Designed for high-performance automotive applications, these nuts offer a superior alternative to standard hex hardware, providing higher tensile strength and a compact head design that facilitates easier wrenching in tight clearances.

• Manufacturer Part Number: 300-8305
• Thread Size: 9/16"-18 (Fine Thread)
• Head Style: 12-Point for increased surface contact and torque accuracy
• Engineered for high-stress racing and performance environments
• Precisely machined tolerances for consistent clamping force

The ARP 12-point nut kit (MPN 300-8303) is engineered for high-performance automotive applications where precision and reliability are paramount. The compact 12-point design offers increased surface area for tool engagement, facilitating higher torque loads and providing better clearance in tight engine or chassis compartments compared to traditional hex hardware.

• Thread Size: 7/16"-20
• Nut Style: 12-Point
• Manufacturer Part Number: 300-8303
• Engineered for consistent clamping force and durability
• Ideal for high-stress fasteners and tight-clearance assemblies

This ARP 12-point nut kit (MPN 300-8302) provides the high-strength fastening required for critical automotive and racing applications. Designed with a 12-point head style, these nuts allow for more effective torque application and better tool clearance in confined spaces compared to traditional hex hardware.

Each nut is engineered to ARP's strict tolerances, featuring precision-machined 3/8-24 fine threads for a secure fit. These fasteners are an essential upgrade for builders looking to replace worn OE hardware or complete a custom assembly where fastener integrity is paramount.

• Thread Size: 3/8-24
• Fastener Style: 12-Point Nut
• Manufacturer Part Number: 300-8302
• Designed for high-torque, high-stress environments

Ensure maximum clamping force and reliability with the ARP 300-8301 5/16"-24 12-point nut kit. Engineered for high-performance automotive applications, these nuts feature a compact 12-point design that provides superior tool clearance and allows for more even load distribution compared to traditional hex hardware.

Whether you are securing engine components, chassis brackets, or custom fabrications, ARP fasteners are manufactured to exacting tolerances for consistent performance under load. This kit replaces standard hardware with professional-grade fasteners designed for high-stress environments.

• Thread Size: 5/16"-24 (Fine)
• Nut Style: 12-Point
• Manufacturer Part Number: 300-8301

Fits Subaru models equipped with the 2.0L FA20 4-cylinder engine.

The ARP Flywheel Bolt Kit (260-2801) is a critical upgrade for any high-performance engine build. Factory flywheel bolts can stretch or fail under the increased stress of high-RPM operation and higher torque loads. ARP hardware is engineered to provide the superior tensile strength and clamping force required to keep the flywheel securely mated to the crankshaft in demanding conditions.

• Designed specifically for Subaru 2.0L FA20 4-cylinder applications
• Provides significantly higher strength than standard OEM hardware
• Precision-machined for exact fitment and reliable torque loading
• Essential for performance builds, track use, and clutch replacements
• Manufacturer Part Number: 260-2801

Ensure your valvetrain remains secure under high-RPM conditions with the ARP Cam Bolt Kit (256-1003). Designed specifically for the Ford 5.0L Coyote V8, these fasteners provide significantly higher strength and more consistent clamping force compared to standard factory hardware. Unlike OEM torque-to-yield (TTY) bolts that must be discarded after a single use, these ARP cam bolts are reusable and engineered to handle the stresses of performance engine builds.

• Direct fit for Ford 5.0L Coyote V8 engines.
• High-strength fastener design prevents camshaft timing drift.
• Reusable bolts eliminate the need for new OE hardware during every service.
• Provides precise torque readings for a secure, reliable installation.
• Manufacturer Part Number: 256-1003.

The ARP Ford Modular V8 (M10) Camshaft Bolt Kit (MPN: 256-1002) is a critical upgrade for any engine build or valvetrain service. Designed as a direct high-strength replacement for factory M10 camshaft hardware, these bolts provide the consistent clamping force needed to keep cam gears properly timed and secured under high load and extreme RPM conditions.

• Specifically fits Ford Modular V8 engines requiring M10 hardware
• Replaces standard factory cam bolts with high-strength precision fasteners
• Precision-machined threads ensure accurate torque loading and reliability
• Essential for performance builds and high-RPM applications
• Manufacturer Part Number: 256-1002

Fits Ford vehicles equipped with the 4.6L V8 engine.

Ensure your engine's valvetrain timing remains precise and secure with the ARP Cam Sprocket Bolt Kit. Designed specifically for Ford 4.6L V8 applications using a single-bolt configuration, this kit replaces the factory hardware with a high-strength fastener capable of handling the increased stresses of high-performance use.

Engineered for superior clamping force compared to standard OE fasteners, this bolt helps prevent sprocket slippage to maintain accurate cam timing. Like all ARP hardware, this kit is manufactured to exacting tolerances for a perfect fit and long-term reliability in demanding conditions.

• Manufacturer Part Number: 256-1001
• Engine Fitment: Ford 4.6L V8
• Configuration: Single bolt camshaft
• Includes: High-strength cam sprocket bolt and matched washer

Secure your drivetrain with the ARP Pro Series Flexplate Bolt Kit (254-2901), specifically engineered for Ford 4.6L and 5.4L Modular V8 engines. These high-strength fasteners are designed to replace factory hardware, providing the reliability needed for high-RPM and high-torque applications where standard OE bolts may be prone to shearing or stretching.

• Fits Ford 4.6L and 5.4L engines
• Engineered for high-performance and heavy-duty drivetrain applications
• Precision-machined for exact fitment and uniform load distribution
• Replaces factory flexplate-to-crankshaft mounting hardware
• Manufacturer Part Number: 254-2901

Built for the rigors of performance street and racing use, this kit ensures a solid connection between the crankshaft and the flexplate, protecting your engine and transmission from damage caused by fastener failure.

Secure your drivetrain with the professional-grade ARP Flywheel Bolt Kit (MPN 254-2801). Designed specifically for Ford Modular V8 engines, these bolts solve the common issue of fastener stretch or failure in high-performance and high-RPM applications where factory hardware may fall short.

Each bolt is precision-machined from high-strength heat-treated alloy, featuring an M10 x 1.0 thread pitch. These fasteners provide a much higher clamping force than standard OE bolts, ensuring your flywheel remains perfectly indexed to the crankshaft during aggressive shifts and heavy engine loads. The black oxide finish provides long-lasting corrosion resistance and durability.

• Fits select Ford 4.6L and 5.4L Modular V8 engines.
• Manufacturer Part Number: 254-2801
• Thread Size: M10 x 1.0
• Material: Heat-treated high-strength alloy
• Finish: Black Oxide
• Essential for high-performance builds and clutch replacements

Ensure valvetrain stability and timing accuracy with the ARP Ford Cam Bolt Kit (254-1001). Designed to withstand the high-stress environment of high-performance engines, these fasteners replace factory cam bolts that can stretch or loosen under load. ARP fasteners are manufactured to exacting tolerances to provide consistent clamping force, preventing gear slippage and protecting your engine's internal components.

This kit is engineered specifically for Ford applications, providing a reliable solution for both street builds and dedicated track vehicles. These bolts feature precision-machined threads and a high-strength finish for long-term durability and repeatable torque cycles during engine assembly or maintenance.

• Manufacturer Part Number: 254-1001
• Specifically designed for Ford camshaft gear mounting
• Provides superior clamping force over standard OE hardware
• High-tensile strength material for valvetrain security
• Includes required fasteners and hardened washers

Secure your drivetrain with the ARP 251-2901 Flexplate Bolt Kit, specifically engineered for Ford Pinto engines with 2000cc and 2300cc displacements. These fasteners are a critical upgrade over factory hardware, providing the increased tensile strength necessary to handle higher RPMs and increased torque loads in performance or racing applications.

As the primary link between the crankshaft and the flexplate, these bolts must resist shearing and stretching. ARP manufactures these bolts from premium materials that are heat-treated and precision-machined to ensure a flat, parallel surface for even load distribution. This kit replaces worn or stretched OE fasteners to prevent potential drivetrain failure and ensure long-term reliability.

• Fits Ford Pinto 2000cc and 2300cc engines
• High-strength fasteners engineered for durability and reliability
• Precision-machined threads for consistent torque loading
• Manufacturer Part Number: 251-2901

Secure your drivetrain with the ARP Ford Cosworth YB Flywheel Bolt Kit (MPN 251-2803). Designed for the extreme stresses of high-performance and competition engines, these bolts provide the superior clamping force required to keep the flywheel safely mated to the crankshaft, preventing the loosening or failure often seen with standard OE hardware.

• Forged from premium 8740 chrome moly steel for maximum tensile strength
• Heat-treated and precision-ground for exact tolerances and balanced rotation
• Rolled threads for significantly higher fatigue resistance compared to cut threads
• Flat, 12-point head design ensures excellent socket engagement and torque accuracy
• Engineered specifically for the Ford Cosworth YB engine platform
• Manufacturer Part Number: 251-2803

Whether you are performing a refresh or a full-power build, upgrading to ARP fasteners is a critical step in ensuring engine longevity and drivetrain reliability.

Fits 1990-2005 Mazda Miata (1.8L / 2.0L).

The ARP Ford 1.8L/2.0L Duratec Flywheel Bolt Kit (MPN: 251-2802) is a essential upgrade for any manual transmission service or performance engine build. These fasteners are specifically engineered to handle the increased rotational stresses and harmonics of high-performance driving, providing far greater clamping force and reliability than standard OEM hardware.

• Designed for 1990-2005 Mazda Miata 1.8L and 2.0L applications.
• Replaces factory flywheel bolts to ensure drivetrain integrity.
• Precision-manufactured to ARP's strict tolerances for consistent load distribution.
• Essential for high-RPM use and track-driven vehicles.
• Manufacturer Part Number: 251-2802.

Fits 2000-2004 Ford Focus LX (2.0L).

The ARP Flywheel Bolt Kit (MPN: 251-2801) is a critical upgrade for the 2.0L Zetec engine found in the 2000-2004 Ford Focus. These high-strength fasteners are designed to replace factory bolts, which are often torque-to-yield and cannot be safely reused. These M11 fasteners provide a significantly higher clamping force and increased tensile strength to ensure the flywheel remains securely mated to the crankshaft, even under the stress of high-RPM operation or performance driving.

• Specifically designed for 2000-2004 Ford Focus LX 2.0L applications
• Manufactured from premium aerospace-grade alloys for superior durability
• Precision-rolled threads ensure consistent torque loading
• Heat-treated prior to thread rolling and machining for maximum fatigue life
• Thread Size: M11
• Manufacturer Part Number: 251-2801

Secure your harmonic damper with the ARP 251-2501 Balancer Bolt Kit, specifically engineered for Ford Duratec engine applications. While factory balancer bolts are often torque-to-yield fasteners that require replacement after a single use, this ARP fastener is manufactured from high-strength material to provide a reusable solution that exceeds OEM clamping requirements.

Forged from premium 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength rating, this bolt is designed to maintain crankshaft-to-damper integrity even in high-RPM performance or racing environments. The kit includes a precision-machined, extra-thick wide-area washer to ensure even load distribution across the damper hub.

• Compatible with Ford Duratec engines
• Manufactured from 8740 chrome moly steel alloy
• Rated at 200,000 psi tensile strength for superior reliability
• Reusable fastener design eliminates the need for OE torque-to-yield bolts
• Corrosion-resistant black oxide finish
• Includes 1/4-inch thick wide-area parallel-ground washer
• Manufacturer Part Number: 251-2501

Secure your third member with the professional-grade ARP Ford 9-inch Differential Gear Carrier Stud Kit. Designed for high-stress applications, this kit replaces standard bolts or lower-grade hardware to prevent housing leaks and carrier movement under heavy load.

Each fastener is manufactured from premium 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength rating. The threads are rolled after heat treatment, a process that provides significantly better fatigue resistance compared to fasteners with threads cut into the material. The black oxide finish provides corrosion resistance while maintaining a professional appearance.

• Fits Ford 9-inch differential housings
• Stud Diameter: 3/8 inch
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Finish: Black Oxide
• Manufacturer Part Number: 250-3005

The 250-3005 kit includes a complete set of ten 3/8" studs, matching nuts, and hardened washers for a comprehensive installation.

Fits Dodge Cummins 24V engines.

Ensure your valvetrain remains stable under high-load conditions with the ARP Rocker Pedestal Stud Kit. This kit replaces the factory rocker pedestal bolts, which are prone to stretching or fatigue in high-boost or high-RPM diesel applications. By switching to a stud-and-nut configuration, you achieve more accurate and consistent clamping force across the rocker assembly, preventing the pedestal movement that leads to valvetrain wear.

• Direct replacement for OEM rocker pedestal bolts in Dodge Cummins 24V cylinder heads
• Prevents fastener stretch to maintain proper valve geometry and lash settings
• High-strength fasteners engineered to handle extreme cylinder pressures
• Complete kit includes precision-machined studs, 12-point nuts, and parallel-ground washers
• Manufacturer Part Number: 247-7201

Ensure your drivetrain's reliability with the ARP Pro Series Flexplate Bolt Kit (244-2902), specifically engineered for GM LS engines utilizing a crankshaft adapter plate. When adapting transmissions or using spacers, standard-length fasteners often fail to provide the necessary thread engagement. This kit solves that issue with high-strength bolts designed to handle the increased shearing forces of high-performance builds.

These fasteners are forged from premium 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength rating, making them significantly stronger than factory hardware or standard Grade 8 bolts. The 12-point head design offers a larger wrenching surface to prevent rounding and provides superior load distribution across the flexplate flange. Each kit comes with ARP Ultra-Torque assembly lubricant to ensure consistent and accurate torque preload during installation.

• Fits GM LS engines using an adapter plate
• Material: 8740 Chrome Moly Steel
• Tensile Strength: 200,000 psi
• Head Style: Low-profile 12-Point
• Finish: Black Oxide for corrosion resistance
• Quantity: Set of 6 bolts
• Includes assembly lubricant
• Manufacturer Part Number: 244-2902

Fits Chevrolet LS Gen III and Gen IV engines. The ARP 244-2901 Flexplate Bolt Kit is engineered to provide superior strength and reliability when securing the flexplate to the crankshaft, a critical connection in high-performance and high-RPM builds.

These fasteners are designed to withstand the shear loads and vibration levels found in performance drivetrains. Featuring a 0.880-inch Under Head Length (UHL) and a 3/4-inch 12-point socket size, they offer a significant upgrade over factory hardware for any LS-based engine project.

• Manufacturer Part Number: 244-2901
• Application: Chevrolet LS Gen III / Gen IV engines
• Under Head Length (UHL): 0.880 in
• Socket Size: 3/4 in (12-point)
• Reliable alternative to factory OE fasteners

Fits SB Chevy LT1 (6.2L) engines.

Ensure valvetrain integrity with the ARP Rocker Arm Stud Kit, engineered specifically for the Small Block Chevy LT1 6.2L engine. These studs provide a more secure mounting solution than standard factory hardware, minimizing flex and maintaining precise rocker arm geometry during high-RPM operation. Using these precision-machined fasteners helps prevent thread fatigue and ensures consistent performance under load.

• Specifically designed for SB Chevy LT1 6.2L applications
• Replaces factory hardware to improve valvetrain stability and alignment
• Essential for high-performance builds requiring reliable rocker arm mounting
• Manufacturer Part Number: 234-7208

Secure your drivetrain with the ARP 234-2801 Flywheel Bolt Kit, specifically engineered for Chevrolet Small Block 6.2L LT1 engines. These fasteners are designed to replace factory hardware, providing the superior clamping force and fatigue resistance necessary to handle increased rotational stress and high-torque loads.

Constructed with the precision and metallurgy ARP is known for, these bolts feature a 1.25-inch Under Head Length (UHL) to ensure optimal thread engagement. Upgrading to ARP hardware is a critical step during clutch replacements or engine builds to prevent bolt stretching or loosening under severe vibration and high-RPM use.

• Manufacturer Part Number: 234-2801
• Engine Fitment: Chevrolet Small Block 6.2L LT1
• Under Head Length (UHL): 1.25 inches
• Application: High-performance flywheel-to-crankshaft mounting

Fits select 1997-2015 Cadillac CTS-V, Chevrolet Camaro, Corvette, SS, SSR, Trailblazer, and Pontiac Firebird, G8, and GTO (5.7L / 6.0L).

Secure your harmonic balancer with confidence using the ARP 234-2503 Balancer Bolt Kit. Designed specifically for GM LS-based engines, this high-strength fastener is a critical upgrade over the factory torque-to-yield (TTY) bolt. Unlike the OE hardware, which stretches during installation and must be discarded after a single use, the ARP bolt is reusable and provides significantly more clamping force to prevent the balancer from spinning or backing off the crankshaft.

Forged from premium 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength, this bolt features an extra-tall hex head that accepts deep sockets to prevent slipping during high-torque installation. The kit includes a 1/4-inch thick, wide-faced washer to distribute the load evenly across the balancer hub, ensuring a precision fit and long-term durability.

• Engine Compatibility: GM LS1, LS6 (5.7L and 6.0L variants)
• Material: 8740 Chrome Moly Steel
• Finish: Black Oxide
• Tensile Strength: 200,000 psi
• Head Style: Extra-tall Hex
• Included Hardware: Main bolt and 0.250" thick parallel-ground washer
• Manufacturer Part Number: 234-2503

Ensure a reliable connection between your flexplate and torque converter with the ARP 230-7305 Torque Converter Bolt Kit. Designed specifically for GM 200, 700R4, 4L60, and 4L80 automatic transmissions, these high-strength fasteners replace factory hardware that can stretch or shear under high-torque loads.

Forged from 8740 chrome moly steel and heat-treated to a 200,000 psi tensile strength rating, these bolts are engineered to handle the demands of performance street and racing applications. The 12-point head design offers a larger surface area for easier socket engagement in tight bellhousings, while the black oxide finish provides long-term corrosion resistance.

• Fits GM 200, 700R4, 4L60, and 4L80 automatic transmissions
• Manufactured from premium 8740 chrome moly steel
• Rated at 200,000 psi tensile strength for maximum clamping force
• Precision-machined threads for consistent torque loading
• Includes six (6) 12-point bolts
• Manufacturer Part Number: 230-7305

This ARP Torque Converter Bolt Kit (MPN 230-7304) is designed for GM 200, 700R4, 4L60, and 4L80 automatic transmissions. When upgrading a drivetrain or installing a high-stall converter, the fasteners connecting the flexplate to the torque converter become a critical failure point. Standard grade-8 hardware can stretch or shear under high-torque loads; ARP solves this by using premium 8740 chromoly steel.

Each bolt is heat-treated to a 200,000 psi tensile strength and features a black oxide finish for long-term corrosion resistance. These fasteners are precision-machined to ensure consistent clamping force and prevent loosening caused by vibration or thermal expansion. This kit provides a significant safety and reliability upgrade over factory OE hardware.

• Fits GM 200, 700, 4L60, and 4L80 transmissions
• Manufactured from 8740 chromoly steel
• Rated at 200,000 psi tensile strength
• Black oxide finish for durability
• Includes necessary washers for installation
• Manufacturer Part Number: 230-7304